improve security

[eric-simpson]

• Running CL commands should be qualified by the library (runsqlstm, clrpfm, cpyf)
• Objects created on the IBM i should have authority *PUBLIC *USE
• Version checking of objects on the IBM i should incorporate a hash function
• UDTF should not use adopted authority. e.g. use EXEC SQL SET OPTION USRPRF=*USER, DYNUSRPRF=*USER

[julesyan]

Running CL commands should be qualified by the library: #525

[julesyan]

To do: Need to refactor SQLStatementChecker so that it gets checked the same way C4i gets checked (codefori/vscode-ibmi#3174)

[timmrIBMi]

@julesyan Seems the work for this has been done ?

[julesyan]

Rest of the fix is here, will get published once v3.0.0 is out #539